Question

1.

a.)

Suppose that you have a batch of red- and white-flowering pea plants. The red-flowering plants are of genotype CC or Cc and the white-flowering pea plants are of genotype cc. All three genotypes CC, Cc, and cc are equally represented in the batch. You pick one plant at random and cross it with a white-flowering pea plant. What is the probability that the offspring will have red flowers?

b.) A drug company claims that a new headache drug will bring instant relief in 89% of all cases. If a person is treated with a placebo, there is a 21% chance that the person will feel instant relief. In a clinical trial, half the subjects are treated with the new drug and the other half receive the placebo. If an individual from this trial is chosen at random, what is the probability that the person will have experienced instant relief?

Answer 1

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